Wrench.



Le W. MILLSAP, JR.

WRENCH.

APPLICATION FILED APR. 2, 1914',

Patented Sept. 8, 1914".,

wiffnem Fltboz new Tooll 'whom it may 'fuman WALTER. or' woonnaNn;oaLrronNIa. f;

Beit known that I, LAND'R XVfLIrLLsAP, a citizen of the United States,anda resident of Woodland, in the county of Yolo and State of-California, have invented anewr and vuseful Improvement in Wrenches, ofA

which the following is a specification.

. This Vinvention relates to wrenches, and vone of the principalobjectsftheof isthe provision of a wrench having an adjusting screw,whereby the Wrench may be loosely adjusted upon a nut, 'and having alocking lever whereby after looseadjustment of the and locking-handle,and having means for' wrench the jaws thereof, may be tightly'- .forcedagainst thenttofprevent slipping ofthe wrench.4

` Another; object of the invention to pro- 'videa wrench having alocking handle, and

-lneans for maintaining the 'handle inv anyV 'adjusted position.- f Y iA furtherlobjectof the invention 1s to provide 'a wrench having anadjusting screw,

Iin'nxintaining the handle in any looked vposition, and means forreleasing at' will the i locking means.

" a vertical transverse sectional view 'taken Still another object ofthe invention is to provide a wrench of the'lass described,

`which will.be extremely simple, dnrable,-

efficientI in operation and inexpensive-to `manufacture. f

With these and other objects in view which will become apparent as thedescriptionr proceeds, thel invention resides -in the construction,combination and arra'ligement` 'of parts herein-after more fullydescribed and claixned,.and illustrated in theaecomlpanyingr drawings inwhich likecharacterls' of reference lndicatenllke parts tlnoughouty theseveral figures, of which- Figure 1, represents a side elevational viewo f the wrench,. a nd, -Fig. 2 represents on 'theplane-indicated by thelinel 2-A-'2 of `ig. 1, looking inthe direction of 'the arrows. YReferring more`V particularly to the drawing, 5 indicates a wrenchhandle, having formed'at oneend thereof a fixed jaw and Yat 7 isindicated the movable wrench .jaw slidable toward and away from jaw 6,and the jaw 7 may beloosely adjusted tolit various'size nuts` by'meansof the worm' 8' ro-4 tatably mounted on the -pin 9, which at its upperend extends into a recess 10 formed 1n he handle to the rearof thelixedjaw (i,

'f l I' f fn l Specicatio'n of Lettertvratent'. A Application led April2,

iyateafed sept-,8, i914. 1914.'serialitmazagvjl nor'nial tendency to,hold the worm and with it tlle lmoval'ilejai'y'i' at tl1e" out erlextreme of movement of the latter. Theworm is placed in a rectangularopening 12 formed in the handle, and is disposed., axially at aninclination with the handle land parallel withthe lineof movement oi themovable jaw. The worm may rotate on pin 9 but is not Vmovablelongitudinally thereof.

opening 13'. 'isf formed in the handle, and through said opening-extendsthe forward bent end 14I of` the lever .15, said lever hav- -as at lli',and to the forward end `of the lever 'is pivotedthelower-fend vof pifM),as at 17. "The lever is` pivoted by meansfof a rivetor pin t8 to.thehandlej adjacent the pivot point'- V17, and thedcver 15 extendsrearleverngef imoirrja\\" 7 may be obtained `by operating lever l5'.Enough play is left at the' pivot p olnt 1 1 and within thelslot guidoneol the points, the play lmingjindicated drawn around the|iivot point 17.

ln'oted at its upper endl to the handle of which depends alongside thehandle 5 and teeth 20, adapted to co-act with a pair' of -tceth formedon -the upper end of a de tent 2l-,in lholding the lever in any adjustedpo- -connectial at 1a. point above pivotpoint 22, tothe rear-cnil of alink 23, whose forward end issomeu-'hat reduced, as at 2l, and slidablyextends through an opening in a button`.25, which may be adjustedlongitudinall y of a slot 26 formed in the wrench handle, the cxtremeforward end of link 23 beling''provided with a lug 27, whereby whenposition shown in Fig. -1, the detent 2l will be disengaged from therack han' lf), thereby. allowing thelle'ver' to be raised, thusdisengaging the movable jaw from the init; lhe button 25, is providedvwith a spring and hearsagainst aspringll which has va;

Rearwardly of the worm .and jaw, an

ing its extreme forward end'slightly oif-set-,i

ing thepinl to allow for the pivotal move'- mcnt ct, the pluaround-.pn-ot i8, and the play may be lcl't at.- both points or at.-eitherlerer l5 near its rear end, is a rack bar llf is'prorided on itsforward edge with rack sitio," s'aid deten't.being-pivotcd near its'lower end, as at 22, to handle 5, and being the button is pushedforwardly fromthe' actuated lug or pin 28,' adaptedto co-actwith a pan'of depressions 29/1n-.thc side of wardl y substantially the length ot'lhandle 5,V i und it is, therefore, evident that a powerful in Fig. l at'the; point. t7 by the dotted circle handl 5 adjacent' 'Slee '26 sq thatthe butonl will be held at either endof its. move- 'rack bar 19 willnormall tion 'whereby' its teeth wi l engage the teeth 4 ment, againstaccidental laoement, The

e held in posiof detent 21-when the latter is in operative adjusted tothe nut by means of the worm.

-position,"`by. means ofk a leaf spring 29-secured at one end to ,theupper end of the rack bar and at the other end to the handle of levervl,and the detent 21 is normally maintainedY in position to engage the rackbar by means kof a spring connected at .one end to the lower end of thedetentpand at its other end to handle 5.

In operation, the movable jaw is loosely 8 and the leverl is thenbrought into play, to lock the jaw against the nut, and by means of therack bar and detent described, the lever will be maintained in anyadjusted'position so that there willlbe nofdanger of the wrenchaccidentally loosening from Y the nut. When the work is finished thebutton 25 may be pushed forwardlyfreleasing' theI detent from therackbar, and the action of spring 11 will be to slightly force -the jawaway from the nut so that the wrench may be instantaneously removed.'-

It has been found that a wrench constructed according to my invention,is4 especially adapted for use on battered nuts, and that when the jawhas been locked in position a fixed jaw at one end t by means of thelever, the wrenchV may be whirled around without danger of loss forreleasingthe nut. A great advantage accrujaw', a worm for-adjusting themovable jaw,

a pin on which said worm is journaled, said pm at one end -extendlnginto a recess'in' l the handle, a spring insaid recess bearing againstthepin and adapted to' maintain the jawand worm at the outer end oftheir movement, a lever having its forward end bent downwardly, saidlever at its forwardly bent end extending through an opening in saidhandle, said lever having its extreme front end slightly off-set andpivoted tothe lower end of said pin, said lever near, last said pivotpoint being pivoted to the wrench, a rack bar pivoted to the handle ofthe :levernear the rear end thereof, and depending Aalongside saidwrench handle, a dog pivoted to the wrench handle and adapted' -tonormally yengage said rack bar, a link pivoted 4to said dog, a buttonadjustable longitudinally of the handle, said link extending throughsaid button at its forward end, .and springsfor normally maintainingsaid rack bar 4and dev tent in position to engage each other.

2. A wrench comprising a handle having ,a fixed jaw secured thereon, amovable jaw, a pin, a worm thereon whereby said movable jaw may beadjusted, a spring bearing against said pin for normally holding said.worm and movable jaw at the outer extreme of their movement, a leverpivoted to said handle, said pin. ivoted at its lower end to said lever,a racii bar carried by the lever, a detent carried by the wrench handleand adapted to normally engage said rack bar, and means forpmoving saiddetent out of engagement with said rack bar., Y i

3. A wrench comprising a handle having a fixed iaw formed at one endthereof, a movable jaw, means for loosely adjusting said movable jaw,A alever. pivoted to the handle, said lever being connected to said jawadjusting means, means for normally holding said movable jaw at theouter ei:- treme of its movement, a rack bar pivoted to the leverhandle, a dog pivoted to the wrench-handle andadapted to engage the rackbar, a link connected to the do and means for opera ting the link atwill or releasing the dog.

'Y tempra WALTER MILLSAP, Ji. lWitnesses: y

ELsm L. SMITH, `Gr. P. HUns'r.

